As per the title, are solar panels still worth it? If yes any recommendations where to get them from/fit then by?

According to this:

Hi Guys,

Can anyone recommend a good 3D printing company capable of producing 2400 small domed discs (22 x 3.5) - thanks in advance for any pointers.

see attached photo
new to those tool.
the trim bit cut into the surface.
is this bad technique or is there a problem with the bit.
I assumed the blade on the tool would be perfectly level with the edge of the bearing.
but obviously it's slightly proud.

is this normal?
crap bit?

any advice thanks

I have done a bit of thinking recently about workshop design, and it occurred to me that other people may find this interesting so sharing my ideas and thought process here. You may find this particularly useful if you have a tendency for over planning and going round in circles and not getting things done. In fact that is probably the only reason you would find this interesting...